?High Strength Grip Strengthener?The hand grips strengthener is made of high-quality high-precision carbon steel and PP material, exquisite workmanship, thickened and high-strength design, double thickened spring, wear-resistant, rust-free, strong elasticity, and durable of durability and stability., ?Ergonomic Handle Design?The hand gripper adopts an ergonomic handle design. The TPR handle fits the curvature of the fingers and is comfortable to use. You feel comfortable during use and will not slip, and the soft handle makes it suitable for everyone, suitable for men, women, the elderly and children., ?5-100KG Adjustable Resistance Design?The resistance adjustment range of the forearm strengthener is 5-100kg, and the strength can be adjusted by turning. You can gradually increase the strength of your hands through exercises, which is suitable for both beginners and experienced fitness enthusiasts.